Does a specific AD/CVD order cover the product?

Start with the order and the physical merchandise. AD/CVD can depend on detailed product descriptions, exclusions, countries, producers/exporters and subsequent determinations. A Mexican processing step needs to be evaluated within that framework.

Locate the order before estimating duties

Use Commerce’s scope resources and the relevant proceedings in ACCESS. Record the order or case number, written scope, amendments and decisions relevant to the proposed merchandise. HTS numbers can help with discovery; Commerce explains that the written scope description is controlling. Commerce AD/CVD questions

A broker’s tariff-line match can identify a concern. It does not replace the product comparison or the applicable instructions.

Separate the questions you take to the specialist

Scope procedures under 19 CFR 351.225 and circumvention procedures under 351.226 serve different purposes. Send both questions separately if each is unresolved. Neither a USMCA claim nor a country-of-origin marking decision supplies a complete AD/CVD determination. Under 351.225(j), Commerce may determine origin using its own reasonable method and is not bound by CBP classification or origin-marking rulings. Commerce origin and scope standards

Prepare the order and product file

Copy the following into a review index:

• The exact order/case and the scope text version, including exclusions.
• Product drawings or specifications, composition, dimensions, finish and use.
• Manufacturer, exporter, supplier and processing locations, identified by legal entity.
• Source materials and production before and after any Mexican processing.
• Proposed entry date and any relevant inquiry, final determination or effective-date instruction.
• Similar scope decisions and the facts that differ from the proposed goods.
• Requested or already prepared certifications, with their authority and signatory.

Keep detailed commercial and technical documents within the authorized review channel. Mark unconfirmed facts as open questions rather than selecting a duty rate from an unrelated producer’s case.

Explain the Mexico operation precisely

For example, if a supplier proposes cutting or assembling material in Mexico, describe what enters the plant, the operations performed, the resulting product and the ownership chain. Compare those facts with the named order and any relevant proceedings. The presence of an IMMEX program shows a different authorization context; it cannot answer the scope or circumvention question.

The origin framework helps keep marking and preference records separate. The China-to-Mexico guide addresses the inbound Mexican operational handoff.

Ask for a dated, issue-specific conclusion

A review should identify the product and order, facts relied on, instructions checked, effective period and remaining uncertainty. Where coverage is unclear, the importer and trade counsel can consider the appropriate Commerce procedure. Treat any supplier change or manufacturing relocation as a trigger to reopen the review. AMMEX supplies a preparation framework; final applicability and filing decisions require the competent authorities and qualified professionals.